<template>
  <div class="upload-container">
    <el-button :style="{background:color,borderColor:color}" icon="el-icon-upload" size="mini" type="primary" @click=" dialogVisible=true">
      上传图片
    </el-button>
    <el-dialog :visible.sync="dialogVisible" append-to-body>
      <el-upload
        :multiple="true"
        :headers="headers"
        :data="moduleData"
        :file-list="fileList"
        :show-file-list="true"
        :on-remove="handleRemove"
        :on-success="handleSuccess"
        :before-upload="beforeUpload"
        :action="localUploadUrl"
        list-type="picture-card"
      >
        <i class="el-icon-plus"></i>
      </el-upload>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="handleSubmit">确定</el-button>
        <el-button @click="dialogVisible = false">取消</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import { getToken } from '@/utils/auth'
export default {
  name: 'EditorImage',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    }
  },
  data() {
    return {
      moduleData: {
        name: 'tinymce',
      },
      headers: {
        SalonAdminToken: getToken(),
      },
      localUploadUrl: process.env.VUE_APP_BASE_API + "/local/file/upload", // 上传的图片服务器地址
      dialogVisible: false,
      listObj: {},
      fileList: []
    }
  },
  methods: {
    checkAllSuccess() {
      return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map(v => this.listObj[v])
      if (!this.checkAllSuccess()) {
        this.$message('请等待所有图片上传成功. 如遇网络问题请刷新页面重新上传!')
        return
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleSuccess(response, file) {
      console.log(response);
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          this.listObj[objKeyArr[i]].url = process.env.VUE_APP_FILE_URL + response.type + "/" + response.realName
          this.listObj[objKeyArr[i]].hasSuccess = true
          return
        }
      }
    },
    handleRemove(file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return
        }
      }
    },
    beforeUpload(file) {
      const isJPG = file.type === 'image/jpeg' || file.type === 'image/png';
      const isLt2M = file.size / 1024 / 1024 < 2;
      if (!isJPG) {
        this.$message.error('上传图片只能是 JPG | PNG 格式!');
        return false;
      }
      if (!isLt2M) {
        this.$message.error('上传图片大小不能超过 2MB!');
        return false;
      }
      const _self = this
      const _URL = window.URL || window.webkitURL
      const fileName = file.uid
      this.listObj[fileName] = {}
      return new Promise((resolve, reject) => {
        const img = new Image()
        img.src = _URL.createObjectURL(file)
        img.onload = function() {
          _self.listObj[fileName] = { hasSuccess: false, uid: file.uid, width: this.width, height: this.height }
        }
        resolve(true)
      })
    }
  }
}
</script>
<style rel="stylesheet/scss" lang="scss" scoped>
  .upload-container .editor-slide-upload{
    margin-bottom: 20px;
  }
</style>